Set 2 buttons position in all densities

I have to buttons, one for calculate(in the LEFT) and the other(in the RIGHT) for reset EditTexts values! In fact i mak开发者_运维知识库ed this:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">
<Button
    android:text="Calculer" 
    android:id="@+id/button" 
    android:layout_height="wrap_content"
    android:layout_width="wrap_content">
</Button>
<Button
    android:text="Reset" 
    android:id="@+id/button2" 
    android:layout_marginLeft="280px"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content" >
 </Button>
</LinearLayout>
</LinearLayout>

But the reset button doesn't change in function of the screen size if the dpi is high the reset button don't take left position(almost)! What can i solve the problem? Thakns :).

280px

Don't ever use pixels in android. Use dip(density-independent-pixels) for your views.

Also, why do you use marginLeft? Use marginRight to tell android to put your button to the right margin.

Change the android_layout_marginLeft of the Reset button to not use px. Use dp instead. See http://developer.android.com/guide/practices/screens_support.html for more examples.